Document 6woKJjKLgQ2LnXz883Z7wG1Yd

254 CHAPTER 14 1949-Guide Table 1. Wintek Climatic Conditions*--(Continued) State Elspt Period 0? Record* Cou 5 Lowest Temp. on Record* F Cou 6 Average Annual Min. Teup. F Cou 7 Desion Drt-Bulb Temp, on TAC97K9S F Pa. ' Philadelphia--.CO 200 1871-1947 -11 6 ITiifedelpbia--.AP 18 1940-1947 .l Pittsburgh. <JU 929 1875-1947 -20 -2 Pittsburgh.... ..AP 1284 1935-1947 -16 Reading_ .CO 311 1913-1947 -14 Scranton. .CO 877 1901-1947 -19 Sunbury____ AP 448 . 1935*1939* R.I _ Block Island..--CO 46 1881-1947 -10 " Providence____ .CO 77 1904-1947 -17 1 ac .. Charleston.........CO 59 1871-1947 . 7 ' . '22 Charleston____ AP 51 1940-1947 14 Columbia_____ CO 401 ISST'-m? -2 19 Columbia__ AP 227 1939-1947 9 Greenville__ _.CO 1006 Up to 1946 '.-5 8 D.__ Huron ___ ---CO 1342 1881-1938 -43 -r26 Huron.. _AP 1287 1938-1947 -30 Rapid City__ _CO 3309 1888-1947' -34 - -21 Rapid City.- _AP. 3220 1939-1947 -27 Term. . Chattanooga__ CO 952 1879-1947 . -to ' 9 Chattanooga-__AP 675 1940-1947 6 Knoxville___ CO . 1024 1871-1942 -16 2 1007 1942-1947 .1 Memphis_____ CO 348 1872-1941 --9 9 Memphis__-- .AP 267 1941-1947 1 Nashville____ .CO Nashville__- ...AP 714 610 1871-1947 1939-1947 -13 -IS 5 TexM-- Abilene.-. . .CO 1748 1885-1944 -6 Abilene....... AP 1756 1940-1947 -9 Amarillo.____ ....CO 3686 ' 1892-1941 -16 0 Amarillo .......-AP 3595 1941-1947 -7 Austin. __CO 625 1897-1942 -1 Austin____ AP 625 1942-1947 13 Brownsville- .CO 140 1922-1943 12 .29 Brownsville- AP 25 -1943-1947 30 ftorpns Chriati_CO 21 1887-1942* 11 Corpus (Jhristi--A P 45 1943-1946* 23 Dallas.______ CO 732 191.4*1940 --3 13 Dallas_______ .AP 520 1940-1947 5 Del Rio --CO 1020 1905-1947 12 ICI Paso-..CO 3792 1880-1942 ' -5 16 lil Paso-- ___AP 3956 1939-1947 ' - 11 Port Worth-__ CO 708 1898-1939* -8 ,, 12 Port Worth--A P 728 1940 t947 - . 4 - Galveston___ . Ctl 128 187W947 8 Galveston.___ .AP 9 1939-1947 114 Houston. .CO 198 ' 1888-1947 5 22 Houston- .AP 73 ` 1932-1947 5 Palestine___ ..00 S55 1881-1947 -6 Port Arthur__ ..CC 64 1917-1947 11 Port Arthur____AP 21 1944-1947 24 San Antonio___ CC 770 1885-1941 4 21 San Antonio AP 800 1942-1947 17 Waco ___ AP 513 1931-1947 :7 Wink. _____ AP 2811 1935-1939* Utah . Milford..........._..AP S095 1935-1939* -17 Modena ........... CC 5472 1901-1947 --32 -15. Sall!.akc City...CC 4346 1874-1947 --20 . -2 . Salt IjukeCity....AP 4254 1928-1947 -r30 Vt..... Burlington___ CC 409 1884-1943 -29 -17 Burlington.-......AP 335 194.V1944 -23 v_____ Cape Henry. ,,CC 24 1874m947 5 . Lynchburg........ CC 644 1874-1944 -7 8 Lynchburg_____AP 951 1944-1947 7 Norfolk. .CO 91 1871-1947 2 15 Richmond_____ CO 180 1897-1947 -3 . 10 . Richmond----AP 172 1929-1947 *-12 Roanoke AT 1194 1935-1939* Wash-- Ellenshurir AP 1731 1935-1939* North Head- ..CC 199 1884-1947 11 R**iti* nr 104 1890*1947 3 * 2* TO Seattle______ -..AP 47 1928-1947 3 Spokane- .CC 2030 1881-1941 -30 -5 Spokane.__ ____ AP 1974 1941-1947 -7 Tacoma__ ._CC 279 1897-1947 7 Tatooeh Is- .CC 110 1883-1947 7- 1 ftlfima Yakima CCl 1160 ' 1938-1946 AP 1066 1944-1947 -24 -4 W. Va__ Ellrirn Cf 1969 1898-1944 -8 *. Parkeraburg^--.CC 685 1888-1947 -27 -1 6 9k 7 26 19 19 14 20 11 23 26 33 32 26 23 -2 7 15 21 1 24 4 Cou 8 Wind Veu at Design Temp.* Mph Cou 9 Design Dbt-Bulb TempI in Common USEb F Aw.Wnn, \ EL-Dec Jan.-Fib.i Mph 0 11.0^ 0 12.1 0 -5 7.1 0 0 15 6.9 10 11.6 9.0 7.6 20.6 12.1 10.5 8.0 10 -20 8.4 10.7 -20 . 8.0 10 6.2 0 7.7 7.2 0 9.3 8.9 0 ; 9.8 7.3 15 10.1 10.4 -5 -10 12.1 119 20' 8.3 30 ' 10.4 20 11.0 0 10.6 8.8 IS * 8.0 10.-/ 9.0 8.6 10 10.5 20 11.2 20 ioi 9.2 15 8.0 20 10.7 7.6 11.6 8.5 7.7 7.4 ` 20 8.3 -15 -10 * -10 : 9.0 7.8 11.6 10 14.0 - 5 ` . 8.1 15 111 15 8.1 7.1 8.2 3.8 - 20 * ; 16.1 15 9.8 6J ' -IS' 6.2 5.1 15 8.0 15 18.9 -5 . 4.1 i .. -10 . 6.2 -10 ; 7J Heating Load 255 Table 1. Winter Climatic Conditions*--(Concluded) Cou 1 State Cou 2 Station*5 Cou 3 Ele vation* ----------- La Crosse_ ___ AP TIT lender...... ........ CO Rock Springs--AP FT 598 725. 677 1008 884 744 707 6144 6161 5448 5568 6746 Cou 4 Cou 5 . Period op Record* . Lowest Temp, on Record* F Cou 6 Average Annual Min. Temp.* F Cou 7 Design Drt-Bulb Temp, on TAC97H% Basis1 F Col. 8 Wind Veu at Design Temp.* Mph 1886-1947 1S72-1947 1943-1947 1858-1947 1935-1939* 1870-1947 1927-1947 1873-1935 1935-1947 1891-1946 1946-1947 1932-1942 --36 -43 -28 -29 -25 -29 -38 -34 -40 -14 -33 -18 -21 -12 -18 ' -12 -17 -8 -6 -3 -7 6.9 9.1 11.9 11.1 9.1. Cou 9 Cou 10 DesignDbt-Bulb Avg..Wind Temp. in. Vel.-Dec. Common Jan.-Feb.1 Ussb F Mph -20 10.5 -25 9.3 -15 10.1 -15 12.1 15 13.3 -18 3.9 Edmonton------------ Winnipeg_________ Fredericton.......... Charlottetown------ -Que------- Montreal...------------- Prince Albert- .. Y T._ . Dawson................ Newf..-- St. Johns_________ 2219* 22* 228* 786* 1 136* 912* 294* 644* 379* 186* 187* 296* 14N* 1002* . 428* Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Ud to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 -57 2 -2 -- 54 -35 -12 -27 -35 , -40 -26 -27 -29 -34 ' -70 -68 -21 -41 13 . 19 --38 -25 0 -14 -24 -29 -11 -13 -18 -23 -47 -54 -5 -40 Id 5 -35 -20 -5 -5 -20 -30 -10 -10 -15 -20 --45 --45 -10 7.5 4.5 12.6 10.1 9.1 14.3 10.3 8.4 8.0 13.6 9.8 `11.3 13.3 S.I 3.7 12 * United States Data compiled from U. S. Weather Bureau Records for years indicated, and Canadian data from Meteorological Service of Canada corrected to 1946. b CoL 2. The stations followed by letters AP-are airport stations, all others are city office stations and are followed by letters CO. * Col. 3. The elevations marked c are ground elevations of the station. All other elevations given are the actual elevations of the thermometer bulb above mean sea level. * Col. 4. The periods of record indicated apply only to the lowest temperature ever recorded shown in Col. 6, and generally extend from a summer month of the first year indicated through the spring months of the last year indicated. The periods marked by d terminated in December of the year indicated. * Average of readings of one lowest temperature obtained for each year. * It should be noted that Col. 7 applies only to airports, as these data for city stations are not available at this time. The temperature shown is the minimum hourly out-door temperature which has been equalled or exceeded 97} per cent of the total hours in December, January and February for the period of record. It is pointed out that in most cases the airport stations are outside of the city and these data would apply primarily to rural areas. * CoL 8 indicates the average wind velocity which occurred at temperatures the same as, and lower, than the temperatures shown in Col. 7. k Col. 9 records design temperatures in use by A.S.H.V.E. Members as reported by Chapter Secretaries for the various stations. Where these were not available the design temperatures from an ACRMA publica tion and various other sources have been inserted. * The wind velocities indicated in Col. 10 were furnished by the U. S. Weather Bureau and corrected through Feb. 1948. * The bulletin published by A.S.H.V.E. for annual weather data of Detroit indicates 6 as design temperature. k Computed for Reading by Karl Shelley and O. F. Smith. , INSIDE TEMPERATURES The inside air temperature which must be maintained within a building is understood to be the dry-bulb temperature at the breathing line, 5 ft above the floor, or the 30-in. line, and not less than 3 ft from the outside walls. Inside air temperatures usually specified, vary in accordance with the use to which the building is to be put and Table 2 presents values which conform to good practice. The proper dryrbulb temperature to be maintained depends upon , the relative humidity and air motion, as explained in Chapter 12. In other, words, a person may feel warm or cool at the same dry-bulb temperature,